3Com V7122 User Manual page 400

Function
DTMF Detection and
Generation
DTMF Transport (in-band)
Call Progress Tone
Detection and Generation
Output Gain Control
Input Gain Control
Fax and Modem Transport Modes
Real time Fax Relay
Fax Transparency
Modem Transparency
Protocols
VoIP Signaling Protocol
Communication Protocols RTP/RTCP packetization.
Telephony Protocols
In-Band Signaling
Diagnostics
Front panel Status LEDs
Syslog events
SNMP MIBs and Traps
Management
400
Specification
Dynamic range 0 to -25 dBm, compliant with TIA 464B and Bellcore TR-
NWT-000506.
Mute, transfer in RTP payload or relay in compliance with RFC 2833
32 tones: single tone, dual tones or AM tones, programmable frequency &
amplitude; 64 frequencies in the range 300 to 1980 Hz, 1 to 4 cadences per
tone, up to 4 sets of ON/OFF periods.
-32 dB to +31 dB in steps of 1 dB
-32 dB to +31 dB in steps of 1 dB
Group 3 real-time fax relay up to 14400 bps with auto fallback
Tolerant network delay (up to 9 seconds round trip delay)
T.30 (PSTN) and T.38 (IP) compliant (real-time fax)
CNG tone detection & Relay per T.38
Answer tone (CED or AnsAm) detection & Relay per T.38
Automatic fax bypass (pass-through) to G.711, ADPCM or NSE bypass
mode
Automatic switching (pass-through) to PCM, ADPCM or NSE bypass mode
for modem signals (V.34 or V.90 modem detection)
SIP RFC 3261
IP stack (UDP, TCP, RTP).
Remote Software load (TFTP, HTTP and HTTPS).
PRI (ETSI Euro ISDN, ANSI NI2, 4/5ESS, DMS 100, QSIG, Japan INS1500,
Australian Telecom, New Zealand Telecom, Hong Kong Variant, Korean
MIC)
E1/T1 CAS protocols: MFC R2, E&M wink start,
Immediate start, delay start, loop start, ground start,
Feature Group B, D for E1/T1
DTMF (TIA 464A)
MF-R1, MFC R2
User-defined Call Progress Tones
E1/T1 status
LAN status
Gateway status (Fail, ACT, Power, and Swap Ready).
Supported by Syslog Server, per RFC 3164 IETF standard.
SNMP v2c, SNMP v3
V7122 GatewayUser Guide